Pi Day is March 14th! It’s the only number with its own holiday! Most scholars consider Pi to be the most important and fascinating number in all of mathematics. Technically, the mathematical constant pi is an irrational, or never-ending number, created by dividing the circumference of a circle by its diameter. It is a number that begins with 3.14 but then goes on and on never repeating itself for infinity.

Did you know?

Pi Day (3/14) turns out to be Albert Einstein’s birthday!

Pi, more commonly known by the 16th letter of the Greek alphabet, is the most widely-known mathematical constant in the world.